1514 results about "Exit surface" patented technology

The invention provides an optical lens, a lens module and electronic equipment, the optical lens comprises a first lens group, a first prism, a second lens group and a second prism which are sequentially arranged from an object side to an image side, and the first lens group has positive focal power and is used for receiving light rays and converging the light rays; the first prism comprises a first incident plane, a first reflecting plane and a first emergent plane, a first included angle between the first incident plane and the first reflecting plane is smaller than 45 degrees, and the optical axis of the first emergent plane coincides with the optical axis of the second lens group; the second lens group has negative focal power; the second prism comprises a second incident plane, a second reflecting plane and a second emergent plane, a second included angle between the second reflecting plane and the second emergent plane is smaller than 45 degrees, the first included angle is equal to the second included angle, and the optical axis of the second incident plane coincides with the optical axis of the second lens group. According to the optical lens, the second lens group is arranged between the first prism and the second prism, so that the optical lens has relatively high focusing capability and macro effect and relatively high imaging quality.

A lighting device disclosed in an embodiment of the invention comprises a substrate; a light source disposed on the substrate; and a light guide member disposed on the substrate and the light source, wherein the light guide member includes an exit surface and a first reflective surface facing the exit surface, the first reflective surface includes a plurality of reflective portions having different heights with respect to an upper surface of the substrate, and each of the plurality of reflective portions may include a plurality of first surfaces inclined with respect to the upper surface of the substrate.

Illumination device (10) for a motor vehicle headlamp for generating a low beam, wherein a vertical extension of the low beam extends along a VV-line from at least 0° down to at least −10° on the VV-line, said illumination device (10) comprises: —an optic body (100) comprising a common light input section (110), a light output section (130) and a shell surface (140) limiting the optic body (100), —a projection lens system (200) configured to project the light-rays in front of the illumination device (10), wherein the projection lens system (200) in combination with the optic body (100) are configured to generate the low beam illuminated by the projection lens system (200), wherein the optic body (100) comprises a first set of optically operative surfaces for guiding light-rays along a first light-ray path (LR1), wherein the first set of operative surfaces comprises a first and second light deflection surface (300a, 300b), and a first light exit surface (300c), wherein the first and second light deflection surfaces (300a, 300b) are arranged on the shell surface (140), and wherein the first light exit surface (300c) is arranged on the light output section (130), wherein light rays following the first light-ray path (LR1) are incident on the first deflection surface (300a) and are deflected to the second deflection surface (300b), and wherein light-rays incident on the second deflection surface (300b) are deflected to the first light exit surface (300c), and wherein light-rays emitted by the first light exit surface (300c) contribute to generate a first part of the low beam, and wherein the optic body (100) comprises a second set of optically operative surfaces for guiding light-rays along a second and a third light-ray path (LR2, LR3), wherein the second set of optically operative surfaces comprises a third deflection surface (400a) and a second light exit surface (400b), wherein the third deflection surface (400a) is arranged on the shell surface (140) and the second light exit surface (400b) is arranged on the light output section (130) separate from the first light exit surface (300c), wherein light-rays following the second light-ray path (LR2) are incident on the third deflection surface (400a) and are deflected to the second light exit surface (400b) for coupling out of the optic body (100), and wherein light rays following the third light-ray path (LR3) are incident on the second light exit surface (400b) directly from the common light input section (110), wherein light-rays emitted by the second light exit surface (400b) contribute to generate a second part of the low beam.

An optical member includes a light-transmitting light guide body and a light-shielding back cover. The light guide body has an incident part including a plurality of protruding incident prism portions, a reflective surface adjacent to the incident part, and an exit surface facing the incident part and the reflective surface. Each of the plurality of incident prism portions has an incident surface that allows an external scenery light to enter the inside of the light guide body and an adjacent surface adjacent to the incident surface. The back cover covers at least an entire area of the reflective surface of the light guide body across a gap, and abuts against the adjacent surface of a rear prism portion that is one of the plurality of incident prism portions adjacent to the reflective surface.

The invention provides an optical lens, which consists of four lenses and a reflecting element, and sequentially comprises a first lens with positive focal power, a second lens with negative focal power, a third lens with positive focal power, a fourth lens with negative focal power, a fifth lens with positive focal power and a sixth lens with negative focal power from an object side to an imaging surface along a light propagation direction, the image side surface of the second lens is a concave surface; the third lens has positive focal power, and the image side surface of the third lens is a convex surface; the fourth lens has negative focal power; the reflecting element is a prism, the prism comprises an incident plane, a reflecting plane and an emergent plane which are all planes, and light enters the prism from the incident plane along an optical axis, is reflected by the reflecting plane and exits from the emergent plane to an imaging plane; and an included angle of 45 degrees is respectively formed between the reflecting surface and the optical axis of the incident surface and between the reflecting surface and the optical axis of the emergent surface. According to the optical lens, the multiple lenses are combined and matched with the reflecting element, the periscopic long-focus effect is achieved, and the optical lens has the advantages of being small, light and thin.

An angle-adjustable lamp is provided, including a base shell and a lamp body. The base shell is provided with an accommodating cavity. The lamp body is rotatably mounted in the accommodating cavity and is in a damping fit with the accommodating cavity. The lamp body includes a lamp body main body and a rotating shaft having one end connected with the lamp body main body. The lamp body main body has a light exit surface for emitting light. An axis of the rotating shaft is not perpendicular to the light exit surface. An end of the rotating shaft away from the lamp body main body runs through the base shell and extends to an outside of the base shell. According to the present disclosure, the lamp body is rotatably mounted in the accommodating cavity, so that a light exit angle of the lamp body is adjustable.

A display selection button 10 comprises a light projecting unit 21, a light guide plate 13, a light receiving units 22, a control unit 30, and a printed sheet 14 and a LED 25. The light guide plate 13 has an incident surface 13a to which the light emitted from the light projecting unit 21 is incident, a plurality of prisms 13d that reflect incident light toward the side approaching or touching a finger and are provided at positions corresponding to push buttons 10c, and an exit surface 13b that emits the light reflected in the direction in which the finger approaches. The light receiving units 22 receive light emitted from the exit surface 13b and reflected from a finger. The control unit 30 detects the approach of a finger depending on the amount of light received by the light receiving units 22. The printed sheet 14 displays the desired numerals. The LED 25 emits light for displaying the desired numerals in the printed sheet 14.

The invention discloses a super-condensation composite brightness enhancement film and a liquid crystal display backlight module, and particularly relates to the technical field of brightness enhancement films.The super-condensation composite brightness enhancement film comprises a core layer, an upper-layer brightness enhancement structure and a lower-layer brightness enhancement structure, the core layer is a multi-layer film made of poly (ethylene naphthalate) and a copolymer thereof, the upper-layer brightness enhancement structure is fixed to the top of the core layer, and the lower-layer brightness enhancement structure is fixed to the bottom of the core layer; the upper-layer brightening structure comprises a plurality of light gathering blocks, the light gathering blocks are distributed on the top of the core layer in a linear array mode, the light gathering blocks are arranged to be in a trapezoid quadrangular prism shape or a hexagonal pyramid shape, and the lower-layer brightening structure is fixed to the bottom of the core layer. The large-angle light of the incident surface is subjected to primary convergence through the plurality of inverse prism structures at the bottom of the core layer, and the large-angle light of the emergent surface is subjected to secondary convergence through the plurality of concave trapezoidal quadrangular prism-shaped or hexagonal pyramid-shaped light condensation blocks at the top of the core layer, so that the light loss is reduced, and the brightness of the backlight center is improved; and the hexagonal pyramid-shaped light condensation block can also improve the uniformity of the visual angle.

The invention provides an optical lens, which is composed of four lenses and a refraction and reflection element, and sequentially comprises a first lens with positive focal power, a second lens with negative focal power, a third lens with positive focal power and a fourth lens with negative focal power from an object side to an imaging surface along a light transmission direction, the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a concave surface; the third lens has negative focal power; the fourth lens has focal power, and the object side surface of the fourth lens is a convex surface; the refraction and reflection element comprises a light incident plane, a first reflection plane, a second reflection plane, a third reflection plane and a light emergent plane which are all planes, and the light incident plane, the second reflection plane and the light emergent plane are substantially the same plane; the optical axes of the optical lens comprise a first optical axis, a second optical axis, a third optical axis and a fourth optical axis. The optical lens provided by the invention can realize the excellent effect of periscopic long-focus shooting, and has one or more advantages of miniaturization, large image surface, large aperture, high-quality imaging and the like.

The invention relates to the technical field of aero-engine tests, in particular to an aero-engine turbine blade cooling effect test optical test structure which comprises optical glass, an outer casing and an optical channel pipe. The optical glass is located on the light-in side of the optical channel pipe, and the light-out side of the optical channel pipe faces the target blade. The outer casing is arranged on the outer side of the optical channel pipe in a sleeving mode, and a cooling channel is formed between the inner wall of the outer casing and the outer wall of the optical channel pipe so as to cool the optical channel pipe; a gas film ring is connected between the optical glass base and the light inlet side of the optical channel pipe in a sealed mode and located on the light outlet side of the optical glass. The optical glass base is provided with the cooling gas inlet, and the gas film ring is provided with the gas jet hole, so that the cooling gas performs jet sweeping on the light emitting surface of the optical glass and enters the optical channel pipe to cool the optical channel pipe, thereby improving the accuracy of the cooling effect test result of the turbine blade.

In the present invention, a vehicle headlight that emits light forward comprises: a light source; a first optical element that converts light emitted from the light source into parallel light; and a second optical element that has an incidence surface, an emission surface, and a side surface connecting the incidence surface and the emission surface. A first region of a lamp front surface is irradiated using light that is incident on the emission surface from the incident surface of the second optical element without being directed toward the side surface. A second region positioned to the left and / or right of the first region is irradiated at an illuminance lower than the illuminance of the first region by using the light that is incident on the emission surface after being reflected by the side surface.

The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having negative refractive power; a prism having an incident surface, a reflecting surface, and an exit surface, and an angle between the reflecting surface and the optical axis being 45°; a stop; a second lens having positive refractive power; a third lens having refractive power; a fourth lens having positive refractive power; and a fifth lens having negative refractive power.

A water-mist-penetrating three-wavelength temperature measurement device and method for a high-temperature environment, the device including a housing, a three-waveband beam splitting detection module and a computing unit, the housing provided with an optical aperture, the three-waveband beam splitting detection module arranged in the housing, and including a trichroic prism, three radiation detection assemblies, the trichroic prism able to receive the light signals entering via the optical aperture, and emit radiation signals having different wavelength bands through three emission faces, respectively; the three radiation detection assemblies able to receive radiation signals having different wavelength bands emitted from corresponding emission faces, and convert them into electrical signals, respectively; the computing unit able to receive the electrical signals, and perform calculation and analysis to determine a temperature value of a target to be measured; the method including: temperature measurement data acquisition, data fusion, parameter tuning, and model application.

A projection device and a projection system are provided. The projection device includes a light source, an optical modulating assembly, and a lens. The light source includes a laser and at least one optical waveguide. The laser includes first light emitting chips, second light emitting chips, and third light emitting chips. One of the at least one optical waveguide is located on a light outgoing side of the third light emitting chips. Each optical waveguide includes a light incident surface, a light outgoing surface, a light incident portion, and a light outgoing portion. The light incident surface and the light outgoing surface are opposite to each other in a thickness direction of the optical waveguide. The light incident portion is configured to introduce laser light incident thereon into the optical waveguide. The light outgoing portion is configured to transmit the laser light out of the optical waveguide.

The invention relates to an all-silicon metasurface infrared optical filter based on a bound state in a quasi-continuous domain and a manufacturing method of the all-silicon metasurface infrared optical filter. Belongs to the technical field of micro-nano optics, and particularly relates to the technical field of all-silicon metasurface infrared optical filters. The problem that application of the metasurface optical filter under an infrared broadband light source is limited is solved. The all-silicon metasurface infrared optical filter based on the bound state in the quasi-continuous domain comprises a self-supporting silicon frame, a monocrystalline silicon thin film and a nanometer cavity array. The monocrystalline silicon thin film is attached to the self-supporting silicon frame, and a nano cavity array is etched on the surface of the monocrystalline silicon thin film; one surface of the self-supporting silicon frame attached with the monocrystalline silicon film is a light incident surface, and the other surface is a light emergent surface; incident light is irradiated to the nano cavity array on the monocrystalline silicon film in a normal or a certain incident angle to excite a surface resonance mode and a bound state in a quasi-continuous domain, the surface resonance mode and the bound state in the quasi-continuous domain are subjected to interference coupling under the same resonance frequency to form a space overlapping mode, and the incident light is modulated and emitted from the other face of the self-supporting silicon frame.

Imaging lens arrangement (100), comprising: an optical plastic element (110), comprising: an incidence surface (111), wherein an imaging light enters the optical plastic element (110) through the incidence surface (111); a reflective surface (112), wherein the imaging light changes direction through the reflective surface (112); an exit surface (113), wherein the imaging light exits the optical plastic element (110) through the exit surface (113); and at least one connecting surface (130) which is used to connect the incident surface (111), the reflecting surface (112) and the exit surface (113), wherein the at least one connecting surface (130) comprises: a sprue (131) which is arranged on the at least one connecting surface (130), and wherein the sprue (131) is raised relative to an adjacent section (134) of the at least one connecting surface (130); a divergent nozzle surface (132) connected to the sprue (131) and the adjacent section (134), wherein the divergent nozzle surface (132) diverges from the sprue (131) and extends in a direction of the adjacent section (134); and a gate remnant (133) which is arranged on a surface of the sprue remnant (131), wherein a contour of the gate remnant (133) is linear and the gate remnant (133) extends over the surface of the sprue remnant (131); wherein, when projected along a direction in a front view of the adjacent section (134) of the at least one connecting surface (130), a projection surface of the divergent nozzle surface (132) is As, a projection surface of the sprue residue (131) is Ag, and the following condition is met: 0.08 ≤ As / Ag ≤ 0.68.

A lighting device for vehicles is provided with a housing, a cover lens covering an opening in the housing, a light module containing a number of light sources, and an optical unit for generating a predefined light distribution. The optical unit contains an optical waveguide that has a light entry surface and a light emitting surface. The optical waveguide is connected to the cover lens. A first section of the optical waveguide, facing the light source, protrudes from the inner surface of the cover lens, or the light entry surface of the optical waveguide is flush with the inner surface of the cover lens. A second section of the optical waveguide, facing away from the light source, protrudes from the outer surface of the cover lens, or the light emitting surface of the optical waveguide is flush with the outer surface of the cover lens.

The invention discloses an AR light machine and a near-to-eye display device, and relates to the technical field of AR optics. The illumination light path comprises a collimating lens, a compound eye, a first lens and a diffusion sheet which are tightly arranged in sequence along a light beam emitted by the light source; the imaging light path comprises a balsaming lens group, a polarization splitting prism, a reflector and a second lens in contact with the light-emitting surface of the polarization splitting prism, wherein the balsaming lens group, the polarization splitting prism and the reflector are tightly arranged in sequence in the direction of the light beam reflected by the LCOS. The lenses are tightly arranged, and in the illumination light path, light beams passing through the diffusion sheet sequentially enter a polarization splitting prism and a bonding lens group in the imaging light path, so that multiplexing of the polarization splitting prism and the bonding lens group is realized; in addition, in the imaging light path, through a folding structure of a polarization splitting prism, the size of the AR light machine is reduced; in addition, the LCOS is small in size. In conclusion, the volume of the AR light machine provided by the invention can be 30% of that of a traditional AR light machine, and miniaturization of the AR light machine is realized.

An illuminating system includes a light source module and a light homogenizing element. The light source module includes at least one sub-light source module, and each sub-light source module includes a light-emitting element, a wavelength conversion element, a light-splitting element, a reflective element and a light guide element. The reflective element is configured to reflect the exited light beam converted by the wavelength conversion element to the light guide element. The light guide element includes a light incident surface, a reflective surface and a light exit surface. By designing the angle between the light incident surface of the light guide element and the light exit surface to be an acute angle, combined with the deflection configuration of the reflective element, the excited beam may be transmitted along different transmission paths without optical loss.

To provide a vehicle lamp capable of illuminating a wide range of positions in a horizontal direction using a projection lens whose incident surface and emission surface are a single curved surface.SOLUTION: A vehicle lamp 10 comprises: a light guide lens 12 that guides light from a plurality of light sources 21 arranged in a width direction; and a projection lens 13 that projects the light guided by the light guide lens 12 to form a projection light distribution pattern (light distribution pattern LP for low beam) that illuminates the front of a vehicle. The light guide lens 12 has a lateral reflection part 40 that partially protrudes toward the projection lens 13, and the lateral reflection part 40 reflects at least a portion of the light from an end light source 21E located at the end of the plurality of light sources 21 toward a projection incidence surface 13a of the projection lens 13 in a lateral illumination direction Ds so as to travel toward a horizontal end part of the projection light distribution pattern.SELECTED DRAWING: Figure 5

An image display device includes a light source unit, a display panel configured to display an image, and a light guide panel configured to guide light emitted from the light source unit to the display panel. The light guide panel has an incident surface facing the light source unit, an output surface facing the display panel, and a bottom surface facing the output surface on a side opposite to the display panel. The incident surface is a side surface of the light guide panel located between the output surface and the bottom surface. The incident surface has a concave portion in which a part of the incident surface is recessed from remaining portions when viewed from a direction perpendicular to a light guide direction of light in the incident surface and an emission direction of light in the output surface.

The utility model discloses a laser module and a laser light source, and relates to the technical field of optics, the laser module comprises a chip and a lens which are sequentially arranged along an optical axis, the lens is located in the light emitting direction of the chip, and the chip is embedded in the light incident surface of the lens; the light-emitting surface of the lens is used for collimating light beams emitted by the chip in the first direction and the second direction and forming linear light spots after the light beams are diverged in the second direction, and the first direction, the second direction and the optical axis are perpendicular to one another. According to the laser module and the laser light source provided by the invention, the integrity of the laser module can be improved, and the cost is reduced.

An objective system of a medical scope including an optical filter is disclosed. The optical filter includes a light incident side and a light exit side, a central region around an optical axis, and a peripheral region and is designed as an aperture with a single optical axis for white light and fluorescence light. The optical filter includes a first transmission zone for a transmittance of a first wavelength band and a second transmission zone for a transmittance of a second wavelength band at least partially different from the first wavelength band. At least one of the two transmission zones includes a filter coating. As a result, when both white light and fluorescence light pass the optical filter, a light beam cone of the fluorescence light has a larger diameter than a light beam cone of white light or vice versa.

Lighting device for a motor vehicle, comprising at least one light source, a planar light guide (11), at least one optical component and a cover plate (15), characterized in that the lighting device is designed to be installed in the motor vehicle such that the normal (16) on the cover plate (15) encloses an angle (α) not equal to 0° with the vehicle longitudinal direction (17), and wherein the light guide (11) is arranged in the lighting device such that the at least one exit surface (13, 14) of the light guide (11) encloses an angle (β) not equal to 0° with the cover plate (15) at least in sections, so that when installed in the motor vehicle, the normal (19) on at least sections of the at least one exit surface (13, 14) of the light guide (11) encloses a smaller angle (γ) with the vehicle longitudinal direction (17) than the normal (16) on the Cover plate (15).

The invention provides a laser pulse width broadening device and a laser system. The laser pulse width broadening device comprises a first lens array, a plurality of optical fibers with different lengths, a second lens array and a focusing lens, the plurality of optical fibers with different lengths have the same incident plane and emergent plane; the first lens array divides the laser beam; the segmented laser beams are respectively transmitted in a plurality of optical fibers with different lengths, and the plurality of optical fibers with different lengths respectively emit a plurality of light beams with different delays based on the optical path difference of the plurality of optical fibers with different lengths; the second lens array collimates a plurality of light beams with different delays; and a plurality of light beams with different delays pass through the focusing lens and then are superposed to obtain uniformly distributed light beams with target sizes. The lens array can be used for segmenting light beams and coupling the light beams into optical fibers to improve the utilization rate of the light beams. The pulse width is broadened by using the optical path difference of the optical fibers with different lengths; the micro-lens array is used for collimating the light beams, the focusing lens is used for overlapping the light spots, small light spots are formed, and follow-up shaping and light beam coupling are facilitated.

The present disclosure discloses a panel light and a panel light apparatus. The panel light comprises a light guide plate module, a light-transmitting shell, and a light source module. The light guide plate module comprises at least two light guide plates spaced apart from each other, a light guide gap is formed between two adjacent light guide plates, and the light guide plates each comprise a light incident surface and a light exit surface. The light-transmitting shell is provided with an accommodating cavity, and the light guide plate module is arranged in the accommodating cavity. The light-transmitting shell comprises a light guide panel and at least one first light guide side edge. The light guide panel covers the light incident surface of the light guide plate module, and the first light guide side edge is arranged on a side of the light guide panel facing toward the accommodating cavity and is located in the light guide gap, which side faces toward the accommodating cavity. The light source module comprises a first light source and a second light source. The first light source is arranged opposite to the light incident surface of the light guide plate. The light emitted by the first light source enters the interior of the light guide plate through the light incident surface and exits through the light exit surface and the light guide panel. The light from the second light source exits through the first light guide side edge. The above-mentioned panel light has relatively rich lighting effects.

An optoelectronic device (10) comprises a laser light-emitting component (100) and an optical component (200) with an optical waveguide (201). The laser light-emitting component (100) has a light-exit surface (120) for emitting the laser light and at least one first alignment structure (130) on a first end face (110). The optical component (200) has a light-entry surface (220) on a second end face (210) where the laser light can be coupled into the optical waveguide (201), and at least one second alignment structure (230).The first and second alignment structures (130, 230) are designed to be complementary to each other in order to align the laser light emitting component (100) to the optical component (200) in such a way that the light exit surface (120) and the light entry surface (220) are opposite each other, whereby the laser light is coupled into the optical waveguide (201) in the case of emission of laser light by the laser light emitting component (100).

A light guide includes: a light entrance section which has a light entrance surface to which light is input, reflective surfaces and a light transmitting section, the reflective surfaces reflecting a part of the light input, and the light transmitting section transmitting another part of the light input and reflected light reflected by the reflective surfaces; a light guiding section which has a light exit surface, and guides the reflected light so that it is output from the light exit surface; and a continuous section and a non-continuous section. A large part of the light collected by the light entrance section can be output from the light exit surface, by a part of the light input being reflected by the reflective surfaces and the reflected light entering the light guiding section from the light transmitting section via the continuous section to be guided within the light guiding section.

Ray path folding module (200), comprising: a beam path folding element (210) for folding an incident optical axis (Oi) into an exiting optical axis (Oe), wherein the optical path folding element (210) comprises: a light incident surface (211), wherein the incident optical axis (Oi) traverses and enters the light incident surface (211), and a light exit surface (212), wherein the exiting optical axis (Oe) passes through the light exit surface (212) and extends away from it, and an opaque body (220) arranged corresponding to the optical path folding element (210), the opaque body (220) comprising: an open ring structure, wherein the emerging optical axis (Oe) passes through a notch opening (2212) of the open ring structure, and a plurality of light blocking elements (2222) extending from the open ring structure in a direction perpendicular to the exiting optical axis (Oe) toward the exiting optical axis (Oe), wherein the plurality of light blocking elements (2222) are arranged adjacent to the light exit surface (212) of the optical path folding element (210), wherein, when the exiting optical axis (Oe) is regarded as the center of a circle, with θe being an angle occupied by the plurality of light blocking elements (2222) and Ne being the number of the plurality of light blocking elements (2222), the following conditions are met: 10 ° < θ e < 350 ° and 15 < N < 460.

The lamp comprises a lamp body and a light source, the interior of the lamp body is hollow, a cavity is formed in the lamp body, the inner wall of the lamp body is provided with a light inlet face and a light outlet face which are used for transmitting light, the inner wall of the lamp body is further provided with a first light reflecting face used for reflecting light, and the light outlet face is located on one side of the light inlet face; the light source is arranged on the lamp body, and the light-out end of the light source is opposite to the light-in face. Wherein at least part of the first light reflecting surface inclines towards the light emitting surface, and light rays emitted by the light source enter the cavity through the light inlet surface and are emitted from the light emitting surface after being reflected by the first light reflecting surface. According to the LED lamp, after light enters the cavity from the light inlet face, part of parallel light is firstly projected to the inclined face and is reflected by the inclined face to the end, away from the light source, of the light outlet face, a dark area appearing at the end, away from the light source, of the light outlet face due to light attenuation is filled, and the light of the light outlet face of the lamp is dispersed more evenly; therefore, a more uniform light emitting effect is obtained.